Research Repository

Service differentiation for video applications over OBS networks

Askar, Shavan K A and Zervas, Georgios S and Hunter, David K and Simeonidou, Dimitra (2011) 'Service differentiation for video applications over OBS networks.' In: UNSPECIFIED, (ed.) 16th European Conference on Networks and Optical Communications (NOC). Institute of Electrical and Electronics Engineers (IEEE), 200 -203. ISBN 9781612847535

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A QoS enforcement scheme for video traffic over OBS networks is proposed. The suggested scheme (Classified Cloning for Video applications) was implemented and evaluated by extensive ns-2 simulations, involving development of new modules for performance evaluation. Video application performance over OBS networks was evaluated with different aggregation techniques/parameters. The new technique was compared with classical cloning, and showed superior loss rate (PSNR value), ETE packet delay and jitter. The increasing emergence of real-time applications (video streaming, online gaming, video conference etc) was considered, so two scenarios were evaluated with video traffic composing either 10 or 30 of the total. Simulations show up to 77 or 69 improvement respectively in packet loss rate over classical cloning for low loads, while the improvements becomes 51 or 42 for medium or high loads.

Item Type: Book Section
Uncontrolled Keywords: ETE packet delay;OBS network;PSNR value;QoS enforcement scheme;classified cloning;jitter;loss rate;ns-2 simulation;online gaming;real-time application;service differentiation;video application performance;video conference;video streaming;video traffic;DiffServ networks;jitter;optical burst switching;quality of service;telecommunication traffic;video signal processing;video streaming;
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions: Faculty of Science and Health > Computer Science and Electronic Engineering, School of
Depositing User: Jim Jamieson
Date Deposited: 23 Aug 2012 14:21
Last Modified: 16 Dec 2014 11:17

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